ERIC Number: EJ1096257
Record Type: Journal
Publication Date: 2016-Apr
Abstractor: As Provided
On the Prevalence of Alternative Conceptions on Acid-Base Chemistry among Secondary Students: Insights from Cognitive and Confidence Measures
Hoe, Kai Yee; Subramaniam, R.
Chemistry Education Research and Practice, v17 n2 p263-282 Apr 2016
This study presents an analysis of alternative conceptions (ACs) on acid--base chemistry harbored by grade 9 students in Singapore. The ACs were obtained by the development and validation of a 4-tier diagnostic instrument. It is among the very few studies in the science education literature that have focused on examining results based also on measures used in the educational psychology literature. The results indicate that the students harbor a range of ACs of varying strengths in relation to the properties of acids and bases, strengths of acids and bases, pH, neutralization, indicators, and sub-microscopic views of acids and bases. The 25-item instrument uncovered 30 ACs. A novel insight from this study is that when students are presented with a test item with all incorrect answer and reason responses but with a blank space for them to fill up their own answer and reason if they disagree with any of these responses, hardly any chose to do so. ACs were also identified from this question. Overall, the results reiterate the utility of the 4-tier format for identifying ACs and getting some indication of their strengths.
Descriptors: Foreign Countries, Secondary School Students, Secondary School Science, Chemistry, Scientific Concepts, Grade 9, Science Tests, Concept Formation, Test Construction, Test Items, Statistical Analysis
Royal Society of Chemistry. Thomas Graham House, Science Park, Milton Road, Cambridge, CB4 0WF, UK. Tel: +44-1223 420066; Fax: +44-1223 423623; e-mail: email@example.com; Web site: http://www.rsc.org/cerp
Publication Type: Journal Articles; Information Analyses; Reports - Research
Education Level: Secondary Education; Grade 9; Junior High Schools; Middle Schools; High Schools
Authoring Institution: N/A
Identifiers - Location: Singapore